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前言互联网是一个全球性的计算机网络体系,随着计算机网络技术和通信技术的发展,以 TCP/IP 协议为基础的互联网在世界范围内迅速扩张。互联网的发展是世界由工业化走向信息化的象征,其早期主要服务对象是专业技术人员,浏览器的出现使得互联网的服务对象扩大到一般工程技术人员,IP 电话和 IP 电视的使用使互联网的服务对象扩大到普通百姓,这将是互联网发展史上最有价值的变化。社区宽带综合业务网络系统位于互联网的接入网部分,该系统实现了电视网、电话网和计算机网业务的融合,适合城镇
Preface The Internet is a global computer network system. With the development of computer network technology and communication technology, the Internet based on TCP / IP protocol has expanded rapidly around the world. The development of the Internet is a symbol of the world from industrialization to informationization. Its early main service targets were professional and technical personnel. The advent of the Internet enabled the Internet service to be expanded to the general engineering and technical personnel. The use of IP telephones and IP televisions enabled Internet services The expansion of the target to ordinary people will be the most valuable change in the history of the Internet. Community broadband integrated business network system is located in the Internet access network part of the system to achieve the integration of television networks, telephone networks and computer network services, suitable for urban